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Lower calyceal and renal pelvic stones in preschool children: A comparative study of mini-percutaneous nephrolithotomy versus extracorporeal shockwave lithotripsy.
Int J Urol. 2016 07; 23(7):564-70.IJ

Abstract

OBJECTIVES

To compare outcomes of the mini-percutaneous nephrolithotripsy technique and extracorporeal shockwave lithotripsy for lower calyceal and renal pelvic stones in preschool children.

METHODS

From January 2010 to December 2014, single renal pelvic or lower calyceal calculi 10-25 mm in size in children (age ≤6 years) treated by either extracorporeal shockwave lithotripsy (64 patients) or the mini-percutaneous nephrolithotripsy technique (54 patients) were included. Extracorporeal shockwave lithotripsy was carried out by using a Dornier electromagnetic lithotripter. The mini-percutaneous nephrolithotripsy technique was through 14-Fr renal access using a 9.5-Fr semirigid ureteroscope with holmium:yttrium aluminium garnet lithotripsy. The two study groups were compared using Mann-Whitney, χ(2) -test or Fisher's exact test.

RESULTS

Stone parameters were similar in the mini-percutaneous nephrolithotripsy technique and extracorporeal shockwave lithotripsy groups in all patients, and in the pelvic (39 Miniperc, 52 extracorporeal shockwave lithotripsy) and lower calyceal (15 Miniperc, 12 extracorporeal shockwave lithotripsy) subgroups. Stone-free rates in the mini-percutaneous nephrolithotripsy technique and extracorporeal shockwave lithotripsy groups were 88.9% versus 43.8% (P < 0.001) and 94.4% versus 81.2% (P = 0.032) after first and last sessions, respectively. In the renal pelvis, they were 87.2% versus 50% (P < 0.001) and 94.9% versus 84.6% (P = 0.179), whereas in the lower calyx, they were 93.3% versus 16.7% (P < 0.001) and 93.3% versus 66.7% (P = 0.139) after first and last sessions, respectively. Retreatment rates in the mini-percutaneous nephrolithotripsy technique versus extracorporeal shockwave lithotripsy were 7.4% versus 50% (P < 0.001), 7.7% versus 46.2% (P < 0.001), and 6.7% versus 66.7% (P = 0.003) in all patients, renal pelvic and lower calyceal stones, respectively. No significant difference was found in complications (P = 0.521). Auxiliary procedures were required in 9.4% and 1.9% of children in the extracorporeal shockwave lithotripsy and mini-percutaneous nephrolithotripsy technique groups, respectively.

CONCLUSIONS

The mini-percutaneous nephrolithotripsy technique has significantly higher stone-free rates than extracorporeal shockwave lithotripsy for renal pelvic and lower calyceal stones (10-25 mm), with a lower retreatment rate and without a significant increase in complications.

Authors+Show Affiliations

Division of Pediatric Urology, Aboul-Riche Children's Hospital, Cairo University, Cairo, Egypt.Division of Pediatric Urology, Aboul-Riche Children's Hospital, Cairo University, Cairo, Egypt.Division of Pediatric Urology, Aboul-Riche Children's Hospital, Cairo University, Cairo, Egypt.Division of Pediatric Urology, Aboul-Riche Children's Hospital, Cairo University, Cairo, Egypt.Division of Pediatric Urology, Aboul-Riche Children's Hospital, Cairo University, Cairo, Egypt.Division of Pediatric Urology, Aboul-Riche Children's Hospital, Cairo University, Cairo, Egypt.Division of Pediatric Urology, Aboul-Riche Children's Hospital, Cairo University, Cairo, Egypt.Division of Pediatric Urology, Aboul-Riche Children's Hospital, Cairo University, Cairo, Egypt.Division of Pediatric Urology, Aboul-Riche Children's Hospital, Cairo University, Cairo, Egypt.Division of Pediatric Urology, Aboul-Riche Children's Hospital, Cairo University, Cairo, Egypt.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

27173126

Citation

ElSheemy, Mohammed S., et al. "Lower Calyceal and Renal Pelvic Stones in Preschool Children: a Comparative Study of Mini-percutaneous Nephrolithotomy Versus Extracorporeal Shockwave Lithotripsy." International Journal of Urology : Official Journal of the Japanese Urological Association, vol. 23, no. 7, 2016, pp. 564-70.
ElSheemy MS, Daw K, Habib E, et al. Lower calyceal and renal pelvic stones in preschool children: A comparative study of mini-percutaneous nephrolithotomy versus extracorporeal shockwave lithotripsy. Int J Urol. 2016;23(7):564-70.
ElSheemy, M. S., Daw, K., Habib, E., Aboulela, W., Fathy, H., Shouman, A. M., El Ghoneimy, M., Shoukry, A. I., Morsi, H. A., & Badawy, H. (2016). Lower calyceal and renal pelvic stones in preschool children: A comparative study of mini-percutaneous nephrolithotomy versus extracorporeal shockwave lithotripsy. International Journal of Urology : Official Journal of the Japanese Urological Association, 23(7), 564-70. https://doi.org/10.1111/iju.13093
ElSheemy MS, et al. Lower Calyceal and Renal Pelvic Stones in Preschool Children: a Comparative Study of Mini-percutaneous Nephrolithotomy Versus Extracorporeal Shockwave Lithotripsy. Int J Urol. 2016;23(7):564-70. PubMed PMID: 27173126.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Lower calyceal and renal pelvic stones in preschool children: A comparative study of mini-percutaneous nephrolithotomy versus extracorporeal shockwave lithotripsy. AU - ElSheemy,Mohammed S, AU - Daw,Kareem, AU - Habib,Enmar, AU - Aboulela,Waseem, AU - Fathy,Hesham, AU - Shouman,Ahmed M, AU - El Ghoneimy,Mohamed, AU - Shoukry,Ahmed I, AU - Morsi,Hany A, AU - Badawy,Hesham, Y1 - 2016/05/13/ PY - 2015/10/08/received PY - 2016/03/01/accepted PY - 2016/5/14/entrez PY - 2016/5/14/pubmed PY - 2018/8/8/medline KW - Miniperc KW - lower calyx KW - preschool children KW - renal calculi KW - shock wave lithotripsy SP - 564 EP - 70 JF - International journal of urology : official journal of the Japanese Urological Association JO - Int. J. Urol. VL - 23 IS - 7 N2 - OBJECTIVES: To compare outcomes of the mini-percutaneous nephrolithotripsy technique and extracorporeal shockwave lithotripsy for lower calyceal and renal pelvic stones in preschool children. METHODS: From January 2010 to December 2014, single renal pelvic or lower calyceal calculi 10-25 mm in size in children (age ≤6 years) treated by either extracorporeal shockwave lithotripsy (64 patients) or the mini-percutaneous nephrolithotripsy technique (54 patients) were included. Extracorporeal shockwave lithotripsy was carried out by using a Dornier electromagnetic lithotripter. The mini-percutaneous nephrolithotripsy technique was through 14-Fr renal access using a 9.5-Fr semirigid ureteroscope with holmium:yttrium aluminium garnet lithotripsy. The two study groups were compared using Mann-Whitney, χ(2) -test or Fisher's exact test. RESULTS: Stone parameters were similar in the mini-percutaneous nephrolithotripsy technique and extracorporeal shockwave lithotripsy groups in all patients, and in the pelvic (39 Miniperc, 52 extracorporeal shockwave lithotripsy) and lower calyceal (15 Miniperc, 12 extracorporeal shockwave lithotripsy) subgroups. Stone-free rates in the mini-percutaneous nephrolithotripsy technique and extracorporeal shockwave lithotripsy groups were 88.9% versus 43.8% (P < 0.001) and 94.4% versus 81.2% (P = 0.032) after first and last sessions, respectively. In the renal pelvis, they were 87.2% versus 50% (P < 0.001) and 94.9% versus 84.6% (P = 0.179), whereas in the lower calyx, they were 93.3% versus 16.7% (P < 0.001) and 93.3% versus 66.7% (P = 0.139) after first and last sessions, respectively. Retreatment rates in the mini-percutaneous nephrolithotripsy technique versus extracorporeal shockwave lithotripsy were 7.4% versus 50% (P < 0.001), 7.7% versus 46.2% (P < 0.001), and 6.7% versus 66.7% (P = 0.003) in all patients, renal pelvic and lower calyceal stones, respectively. No significant difference was found in complications (P = 0.521). Auxiliary procedures were required in 9.4% and 1.9% of children in the extracorporeal shockwave lithotripsy and mini-percutaneous nephrolithotripsy technique groups, respectively. CONCLUSIONS: The mini-percutaneous nephrolithotripsy technique has significantly higher stone-free rates than extracorporeal shockwave lithotripsy for renal pelvic and lower calyceal stones (10-25 mm), with a lower retreatment rate and without a significant increase in complications. SN - 1442-2042 UR - https://www.unboundmedicine.com/medline/citation/27173126/Lower_calyceal_and_renal_pelvic_stones_in_preschool_children:_A_comparative_study_of_mini_percutaneous_nephrolithotomy_versus_extracorporeal_shockwave_lithotripsy_ L2 - https://doi.org/10.1111/iju.13093 DB - PRIME DP - Unbound Medicine ER -